>Number:         30257
>Category:       port-sparc
>Synopsis:       -current kernels panic on my sparc ipx (see subject)
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    port-sparc-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue May 17 14:17:00 +0000 2005
>Originator:     Markus W Kilbinger
>Release:        NetBSD 3.99.3
>Organization:
	
>Environment:
	
	
System: NetBSD 3.99.3 (KILBISUN) #3: Tue May 17 10:28:34 MEST 2005
Architecture: sparc
Machine: sparc
>Description:
	Since several days (and continuously upgrading and recompiling
	-current kernels) my sparc ipx (sun4c) panics under moderate
	load (trying to compile some pkgsrc stuff, pkgsrc is nfs
	mounted (amd), obj dir is located locally):

	  panic: amap_cow_now: non-resident wired page in anon 0xf2cfc7d8
	  Stopped in pid 172.1 (amd) at   netbsd:cpu_Debugger+0x4:        or
	  %o7, %g0, %g1
	  db> bt
	  cpu_Debugger(0xf0271ed8, 0xf2cfc7d8, 0xffffffff, 0xf2cfe598, 0x100,
	  0xf029dc00) a
	  t netbsd:amap_cow_now+0x178
	  amap_cow_now(0xf2c90b50, 0x0, 0x0, 0xf29f7098, 0x7f0, 0xf2ce6698) at
	  netbsd:uvms
	  pace_fork+0x59c
	  uvmspace_fork(0xf2c90b50, 0xf28ba198, 0x48, 0x0, 0x3f, 0xf2c31e90) at
	  netbsd:uvm
	  _proc_fork+0x1c
	  uvm_proc_fork(0xf28ba198, 0xf2cef1b8, 0x0, 0x0, 0x0, 0x33) at
	  netbsd:fork1+0x320
	  fork1(0xf204a5d8, 0x0, 0x14, 0x0, 0x0, 0x0) at netbsd:sys_fork+0x24
	  sys_fork(0xf204a5d8, 0xf28c9f28, 0xf28c9f20, 0x0, 0xf28c9f28,
	  0xf02d7f10) at net
	  bsd:syscall+0xbc
	  syscall(0x2, 0xf28c9fb0, 0x1011d510, 0x18f, 0x1, 0x0) at 0xf000658c

	I do not see this behavior on i386 and/or cobalt machines, so
	I've chosen 'port-sparc' category.
>How-To-Repeat:
	Try to compile some pkgsrc stuff on a sparc ipx (sun4c) and
	wait/see how the panic occurs.
>Fix:
	n/a

>Unformatted: